An operation method for a display device is disclosed. An operation method for a display device according to an embodiment of the present invention comprises the steps of: displaying a pointer on a screen; receiving information on a movement of a remote control device; acquiring the coordinates of the pointer moving in response to a movement of the remote control device, on the basis of the information on a movement of the remote control device; when, on the basis of the acquired coordinates of the pointer, the pointer moves from an area in the screen to an area outside the screen, changing an input, which is provided to the display device, to an external input; and displaying an image using the external input.